Chat

package audiophileradio.example.com.audiophileradio;

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.media.MediaPlayer;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.app.NotificationCompat;
import android.util.Log;
import android.view.Gravity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.RemoteViews;
import android.widget.ScrollView;
import android.widget.TextView;

import com.firebase.client.ChildEventListener;
import com.firebase.client.DataSnapshot;
import com.firebase.client.Firebase;
import com.firebase.client.FirebaseError;
import com.firebase.client.realtime.util.StringListReader;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.HashMap;
import java.util.Map;


public class Chat extends AppCompatActivity
{
    LinearLayout layout;
    ImageView sendButton;
    EditText messageArea;
    ScrollView scrollView;
    Firebase reference1, reference2;
    boolean timerProcessing = false;
    boolean timerStarts = false;
    String date = "";
    String message;
    String userName;
    int value = 0;

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_chat);

        layout = (LinearLayout) findViewById(R.id.layout1);
        layout_2 = (RelativeLayout)findViewById(R.id.layout2);
        sendButton = (ImageView)findViewById(R.id.sendButton);
        messageArea = (EditText)findViewById(R.id.messageArea);
        scrollView = (ScrollView)findViewById(R.id.scrollView);

        Firebase.setAndroidContext(this);
        reference1 = new Firebase("https://zipa1x.firebaseio.com/messages/" + UserDetails.username + "_" + UserDetails.chatWith);
        reference2 = new Firebase("https://zipa1x.firebaseio.com/messages/" + UserDetails.chatWith + "_" + UserDetails.username);

        sendButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String messageText = messageArea.getText().toString();

                if(!messageText.equals(""))
                {
                    Map<String, String> map = new HashMap<String, String>();
                    map.put("message", messageText);


                    map.put("user", UserDetails.username);

                    reference1.push().setValue(map);
                    reference2.push().setValue(map);
                    messageArea.setText("");
                }
            }
        });

        reference1.addChildEventListener(new ChildEventListener()
        {
            @Override
            public void onChildAdded(DataSnapshot dataSnapshot, String s)
            {
                Map map = (Map) dataSnapshot.getValue();

                message = map.get("message").toString();
                userName = map.get("user").toString();

                if (userName.equals(UserDetails.username))
                {
                    addMessageBox(message, 1);
                }
                else
                {
                    addMessageBox(message, 2);
                    sendNotification(lastMessage);
                }
            }

            @Override
            public void onChildChanged(final DataSnapshot dataSnapshot, String s)
            {

            }

            @Override
            public void onChildRemoved(DataSnapshot dataSnapshot) {

            }

            @Override
            public void onChildMoved(DataSnapshot dataSnapshot, String s) {

            }

            @Override
            public void onCancelled(FirebaseError firebaseError) {

            }
        });

        timer.cancel();

        scrollView.post(new Runnable() {
            @Override
            public void run() {
                scrollView.fullScroll(View.FOCUS_DOWN);
            }
        });
    }

    public void addMessageBox(String message, int type)
    {
        DateFormat df = new SimpleDateFormat("h:mm a");
        date = df.format(Calendar.getInstance().getTime());

        TextView textView1 = new TextView(Chat.this);
        textView1.setText(date);
        textView1.setTextSize(10);

        textView = new TextView(Chat.this);
        textView.setText(message);

        LinearLayout.LayoutParams lp2 = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
        lp2.weight = 1.0f;

        if(type == 1) {
            lp2.gravity = Gravity.RIGHT;
            textView.setBackgroundResource(R.drawable.left_bubble);
        }
        else{
            lp2.gravity = Gravity.LEFT;
            textView.setBackgroundResource(R.drawable.right_bubble);
        }
        textView.setLayoutParams(lp2);
        layout.addView(textView);

        textView1.setLayoutParams(lp2);
        layout.addView(textView1);

        scrollView.post(new Runnable() {
            @Override
            public void run() {
                scrollView.fullScroll(View.FOCUS_DOWN);
            }
        });
    }

    private void sendNotification(String message)
    {
        Intent intent = new Intent(this,Chat.class);
        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

        PendingIntent pendingIntent = PendingIntent.getActivity(this,0,intent,PendingIntent.FLAG_ONE_SHOT);

        Uri notificationSound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);

        NotificationManager notificationManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);

        NotificationCompat.Builder builder = (NotificationCompat.Builder) new NotificationCompat.Builder(this)
                .setVisibility(Notification.VISIBILITY_PUBLIC)
                .setSmallIcon(R.mipmap.ic_launcher)
                .setContentTitle(userName)
                .setContentText(message)
                .setSound(notificationSound)
                .setContentIntent(pendingIntent);

        NotificationManager mNotificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
        mNotificationManager.notify(0, builder.build());
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu)
    {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item)
    {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings)
        {
            //startActivityForResult(new Intent(this,ChatSettings.class),SETTINGS_ACTION);
            Intent intent = new Intent(this, ChatSettings.class);
            startActivity(intent);
            finish();
        }

        return super.onOptionsItemSelected(item);
    }

    @Override
    public void onDestroy()
    {
        super.onDestroy();

        NotificationManager mNotificationManager =
                (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
        mNotificationManager.cancel(0);
    }
}